Though only a concept, Nvidia is using the 3GSM World Congress to demonstrate the Quark, a smartphone which bears no small similarity to the Apple iPhone. This is because of the controls, which are managed almost entirely through the Quark's three-inch touchscreen -- only the power/hold switch is a physical object. Likewise, the phone is particularly focused on media playback, with the ability to run music, photos and videos in a graphically rich environment. A three-megapixel camera actually tops the model found in the iPhone. The Quark as a whole exploits Nvidia's recent GoForce 6100 chipset, which combines GPU and CPU functions, as well as audio and 802.11b/g/i/e wireless. The phone is unlikely to make it into production, but Nvidia technology is already in third-party products. [via Gizmodo]